CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
ASSETS
Allowances for accounts receivable	$ 284	$ 290
LIABILITIES AND STOCKHOLDERS’ EQUITY
Debt issuance costs	$ 7,280	$ 8,983
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	63,000,000	63,000,000
Common stock, shares issued (in shares)	30,880,138	31,294,198
Common stock, shares outstanding (in shares)	30,880,138	31,294,198